MODISCO

A Generic And Extensible Framework For Model Driven Reverse Engineering

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1. WHY => REVERSE ENGINEERING?

Manage

Maintain

Replace

data

architecture

functionalities

Up-to-date

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1. WHY => REVERSE ENGINEERING? 1. Out-of-date systems are still running:

Complexity and heterogeneous Size Migration cost

2. Quickly reengineering existing system.

discover understand

manipulate

re-impleme

nt

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MODISCO PRINCIPLES AND TECHNIQUES

A tradition of using UML

*.javaStructure diagrams

Behaviordiagrams

?

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MODISCO PRINCIPLES AND TECHNIQUES

Some UML reverse engineering tools

FujabaTopcased

*.java *.class

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MODISCO PRINCIPLES AND TECHNIQUES

MoDisco: Models is the first class entities of all processes => reverse engineering

SM

M’

M’’Model

discovery

Model understandi

ng

heterogeneous

homogeneous

Model Driven Reverse Engineering(MDRE)

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MODEL DISCOVERY

struts

Hibernate

Spring

database

java

xml

jsp

Model Discovery

Metamodel1. Natural -> Type of system2. Several models necessary

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MODEL UNDERSTANDING

transforms … transfor

ms

1. Many models transformation -> be used2. Several intermediate representation -> necessary

Source code

document

Structured data

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MODISCO – THE WHOLE PICTURE Discovery, query and manipulation

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MODISCO – ARCHITECTURE

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MODISCO – ARCHITECTURE MoDisco User-Cases

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MODISCO – ARCHITECTURE MoDisco Technologies

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REVERSE ENGINEERING - CONTROL DEPENDENCE GRAPH

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REVERSE ENGINEERING - CONTROL DEPENDENCE GRAPHpublic List<PizzaOrder> getDailyReport() throws ServiceException {try { dbDAO.startTransaction(); List<PizzaOrder> orders = getTodaysOrders(); // materialize details during tx for (PizzaOrder o: orders) { o.getPizzaSize().getSizeName(); for (Topping t: o.getToppings()) t.getToppingName(); } dbDAO.commitTransaction(); return orders;} catch (Exception e) {

dbDAO.rollbackAfterException(); throw new ServiceException("Error while getting daily report

", e);}}

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REFERENCES MoDisco: a generic and extensible framework

for model driven reverse engineering http://jordicabot.com/papers/ASETools10.pdf

MoDisco on Eclipse http://www.eclipse.org/MoDisco/

MoDisco technology http://wiki.eclipse.org/MoDisco/Architecture

Control Dependence Graph http://www.grammatech.com/research/papers/

staticAnalysis/imgSlides/sld021.html